Vibrator adjustment for induction-coils.



R. VARLBY! VIBRA'IOR ADJUSTMENT FOR INDUCTION CDILS.

APPLIOAIION FILED APB.8,1907.

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PATENTED JULY 2, 1907.

UNITED STATES rn rnnr OFFICE.

RICHARD VARLEY, OF ENGLEWOOD, NEW JERSEY, ASSIGNOR TO THE AUTOOOIL COMPANY,

A CORPORATION OF NEW JERSEY.

VIBRATOR ADJUSTMENT FOR INDUCTION-COILS.

Specification of Letters Patent.

Patented July 2, 1907.

To all whom it may concern:

I Be it known that I, RICHARD VARLEY, a citizen of the United States, residing at Englewood, in the county of Bergen and State of New Jersey, have invented certain new and useful Improvements in Vibrator Adjustments i'or Induction-Coils, of which the following is a full, clear, and exact description.

My invention relates to a movement or adjustment by which a pivoted part may be set in diiferent angular relations, the adjustment in my particular relation being absolutely rigid and free from the slightest backlash or lost motion. An important need for such adjustment arises in connection with the vibrators of in duction coils where a spring blade is fixed to vibrate in proximity to a magnetic pole and in which it sometimes becomes necessary to vary the relation thereof to such magnetic pole. iiThe vibrator spring of an induction coil vibrates by its resiliency in the manner of any elastic rod or bar which is fixed at one end. But elastic vibration of this character will not take place if there is any lack of rigidity in the support at the fixed end. In fact, the slightest back-lash or lost motion is suflicient to damp the vibrations and absorb all of the energy oi the spring in its oscillatory movement. In some cases separate means have been employed for initially adjusting and finally clamping the member which supports the vibrator spring, but this arrangement is complicated and difficult to manipulate.

By the present invention I provide a device in which only a single part is manipulated to vary the adjustment, and which by its natiu'e prevents lost motion or back-lash of the parts in any relation to which they are set. Furthermore the adjustment can always be made by manipulating such single part or screw without any necessity for previously loosening any clamping means.

With these and other objects in view my invention consists in the features of construction and combination hereinafter set forth and claimed.

In the drawings: Figure 1 is a side view of a vibrator of an induction coil and which embodies the principles of my invention. Fig. 2 is a sectional view of the same; Fig. 3 is a bottom plan view; and Fig. 4 is an end view looking toward the left in Fig. 1.

Referring to the drawings in which like parts are designated by the same reference sign, 1 indicates a block or support which is adapted to be permanently fixed to an induction coil or the casing thereof 2 denotes the vibrator spring which is required to be positioned in proximity to the magnet pole in varying angular relations, the adjustment being absolutely rigid and firm in any particular case. For this purpose I provide a member 3, which is firmly pivoted to the block 1 by the lateral pin 4, extending therethrough. The block 1 is conveniently made U-shaped, with a pair of parallel legs 1, having extensions 1 between which the member 3 extends and is pivoted, as clearly shown in Figs. 2 andet. The spring blade 2 is fixed to the member 3 in any convenient way, for example, by the screws 5.

6 indicates a screw in threaded engagement with the supporting block 1, and which extends downward therethrough into engagement with the pivoted meniber 3. '7 denotes the head or thumb nut of the screw by which it is turned and adjusted. A spring 8 may be interposed between the block 1 and the head 7 so as to exert a friction clamping action and prevent the screw from turning accidentally.

The member 3 has a longitinlinal vertical slot 9, in the line of the screw 6. This slot 9 is narrower than the diameter of the screw, but the screw has a reduced portion 10, of a width corresponding to that of the slot 9. This reduced portion has a definite longitudinal extent or length, terminated at each end thereof by the round ed shoulders 11 and 12. In addition to the vertical slot 9 in the member 3 there is another longitudinal slot 9 cut or iormed deeply in the member transverse to the slot 9. In this way the member 3 is given a U-shaped section in a vertical plane, as shown in Fig. 2 and the two leaves or parts 3, 3, have a certain spring resiliency, so that they may be pressed toward one another slightly under the influence of a suitable clamping .iorce. The longitudinal extent of the reduced portion 10 of the screw 6 is such that the shoulders 11 and 12 bind tightly against the top and bottom surfaces of the member 3 at all times.

The useand operation is as follows: The parts are assembled as shown particularly in Fig. 2 of the drawing, with the reduced portion 10 of the screw in the vertical slot 9 oi the member 3. he angular position of the member 3 is therefore fixed since it is held by the pin 4 and by the shoulders 11 and 12. If the screw 6 is turned, the angular position of the member 3 is Va ried. As the member 3 is deflected to one side or the other of its central or horizontal position, it tends to require a greater distance between the shoulders 11 and 12 01' the reduced portion 10. This dimension is of course fixed, but the requirement is compensatedfor by the compression of the leaves 3, 3, toward one another by virtue of their resiliencyv At the central horizontal position of the member 3, the leaves 3, 3 are only slightly deflected together by the engagement of the shoulders 11 and 12, but as the screw 6 is moved to deflect the member 3 into its inclined relations, the leaves 3 and 3 become more and more deflected together, out of their normal outline. The split character of the member 3 therefore permits it to make an absolutely tight engagement with the screw for all angular positions to which it is adjusted. There is therefore no back-lash or lost motion under any circumstances, but

the adjustment can nevertheless be changed at any l time by no other manipulation than merely turning the head of the adjusting screw. There is no need for first loosening clamps and then making the adjustment and then tightening the clamps, thereby rendering the adjustment liable to variation, as in the previous methods. In addition to these desirable characteristics it is evident that the springy nature of the leaves 3 and 3, by virtue of the slotted construction, provides a means lor'automatically taking up the wear so that back-lash or lost motion will not develop notwithstanding extensive and continued use of the device.

What I claim, is:-

1. A vibrator for induction coils comprising a pivoted member having a pair of resilient leaves and longitudi nally adjustable means having shoulders embracing said leaves.

2. A vibrator for induction coils comprising a pivoted member having a pair of resilient leaves, and a screw having a reduced portion with terminal shoulders embracing said leaves.

3. A vibrator for induction coils comprising a member supported to permit angular adjustment and having a pair of resilient leaves and longitudinally adjustable means having a reduced portion with terminal shoulders embracing said leaves.

-i. A vibrator for induction coils comprising a member flexibly supported to permit angular adjustment and having a pair of resilient leaves, said member having a slot in the plane of its angular movement, and longitudinally adjustable means having a reduced portion with terminal shoulders passing through said slot and embracing said leaves.-

A vibrator i'or induction coils comprising a member flexibly supported to permit angular adjustment and having a pair oi resilient leaves, said member having a slot in the plane of its angular movement, and a screw having a reduced portion in said slot and having shoulders cmbracing said leaves to resiliently dellect them toward one another.

6. A vibrator for induction coils comprising a member supported to permit angular adjustment, said member having a slot in the plane ol' its angular movement and an additional deeply cut slot transverse thereto, and a screw with a reduced portion passed through said first slot and having terminal shoulders engaging the side faces of said member parallel to said second slot.

7. A vibrator 'for induction coils comprising a pivoted member slotted to form a pair of resilient leaves, said member having an aditional slot in the plane oi 'ts nngular movement, and means having a reduced portion passed through said second slot and iirmlv engaging the member by the resiliency 01. said leaves.

8. A vibrator for induction coils comprising a pivoted member transverscl slotted to produce a pair oi. resilient leaves, said member having an additional slot in lhc plane of its angular movement; and a screw having a reduced portion passed through said second slot and having terminal shoulders lirmlv engaging said member by the rsiliency of said leaves in all angular positions of adjustment.

f). A vibrator for induction coils comprising a. pivoted member having a deep transverse slot to produce a pair oiI resilient leaves, and an additional slot in the plane olf its movement, and means movable in :1 rec ilincar path and having a reduced portion passed through said second slot and having shoulders tightly engaging [he member by virtue of theresilienc v of said leaves in all angular relations.

10. A vibrator for induction coils comprising a spring vibrator, a pivoted member supporting said vibrator. said member being transversely and vertically slotted. and a screw having a reduced portion in said vertical slot and having shoulders engaging the member pnrallcl to said transverse slot.

11. A vibrator for induction coils comprising a spring vibrator. a pivoted member lixod thereto and having trans verse and vertical slots, means movable in a rectilinear path and having a reduced portion exlendi through said vertical slot and having shoulders eng ng the mcmbcr in a direction parallel to said transverse slot. \vhercb the resiliency of said member takes up all lost motion and back-lash when the vibrator spring is adjusted lo different angular relations.

A vibrator :uljustmcnt for induction coils comprising a block or body, a screw threaded therein and having a reduced'poriion, a member having a transverse slot and pivoted to said block, said member also having a vertical slot through which the reduced portion of said passes, and a vibrator spring fixed to said member.

In witness whereof. I subscribe my signature. in the presence of two witnesses.

lllCl [ARD VAltldCY.

Witnesses Wanno M. Cll'Al'lN, MAY Brim. 

